Coolant Hole Screws | McMaster-Carr

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	Screw Features Screw Features	Show

Vented

	Screw Features Screw Features	Hide

	System of Measurement System of Measurement

Inch

Metric

	Thread Size Thread Size

	Thread Type Thread Type

Metric

UNC

UNF

	Length Length

	Head Type Head Type


Socket	Rounded

Hex	Flat

Headless

	Material Material

Stainless Steel

	Threading Threading

	Fully Threaded
	Partially Threaded

	Drive Style Drive Style


Hex	External Hex

	Vent Diameter Vent Diameter

	Socket Head Profile Socket Head Profile

	Standard

	Thread Direction Thread Direction

	Right Hand

	Head Diameter Head Diameter

	Thread Fit Thread Fit

	Head Height Head Height

	Thread Spacing Thread Spacing

Coarse

Fine

	Hardness Hardness

Rockwell B70

Rockwell B81

Not Rated

	Drive Size Drive Size

	Thread Pitch Thread Pitch

	Tensile Strength Tensile Strength

70,000 psi

80,000 psi

Not Rated

	Specifications Met Specifications Met

	Countersink Angle Countersink Angle

82°

90°

	Flat Head Profile Flat Head Profile

	Standard

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309 Products

Screws and Bolts

Vented Socket Head Screws

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

High-Vacuum Cleaned-and-Bagged
Vented Socket Head Screws

Fasten these screws inside a high-vacuum system without bringing in contaminants.

Vented Button Head Screws

These screws are drilled through the shaft to vent fluids and gases trapped under the screw. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Metric Vented Button Head Screws

To vent fluid and gas trapped under the screw, these metric screws are drilled through the shaft. Made from 18-8 stainless steel, they have good chemical resistance and may be mildly magnetic.

Vented Hex Head Screws

Drilled through the head and shaft, these screws vent fluid and gases trapped below the screw, making them good for vacuum applications.

Vented Flat Head Screws

These screws are drilled through the shaft to vent fluids and gases trapped under the screw.

Metric Vented Flat Head Screws

To vent fluids and gases trapped under the screw, these metric screws are drilled through the shaft.

Vented Cup-Point Set Screws

These inch size set screws are vented to allow fluid and gas to pass through.

Metric Vented Cup-Point Set Screws

These metric set screws are vented to allow fluid and gas to pass through.